Played Grace Notes Rendered as Chords

Ugly. What's going on here? The raw note ruler at the top only
gives a tiny hint, and we probably need to have a look in the matrix for
this one.

There's the culprit. The little "grace" note coming ahead
of the beat, and straddling the barline. Rosegarden is not sure what to
do with this at all (although, helpfully, at least we circle the note
now, which is an improvement over when this report was filed three years
ago.)

The best solution I can think of is to delete the little G#4 from the
matrix, then go back to a notation view, go into grace insert mode, and stick the note back in
ahead of the longer note.

We'll just gloss over the fact that the # didn't show up, and all the
weird rest problems that remain. Nothing to see here. Move along.
These aren't the droids you're looking for.